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net/mlx5_core: Fix a bug in alloc_token

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In alloc_token(), the token '1' would be allocated twice consecutively.

Signed-off-by: Achiad Shochat <achiad@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Achiad Shochat 2015-04-02 17:07:28 +03:00 committed by David S. Miller
parent 21db507439
commit 4cbdd27c9c
1 changed files with 4 additions and 1 deletions
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5
drivers/net/ethernet/mellanox/mlx5/core/cmd.c
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@ -125,7 +125,10 @@ static u8 alloc_token(struct mlx5_cmd *cmd)
u8 token;
spin_lock(&cmd->token_lock);
token = cmd->token++ % 255 + 1;
cmd->token++;
if (cmd->token == 0)
cmd->token++;
token = cmd->token;
spin_unlock(&cmd->token_lock);
return token;